Expand the description of Zig

Author: rtoal

zig/README.md

@@ -20,7 +20,7 @@ zig run top_ten_scorers.zig < ../test/wnba_input
 
 ## About Zig
 
-The Zig language was created by Andrew Kelley in 2016, as a pragmatic alternative to the venerable <a href="https://github.com/rtoal/ple/tree/main/c">C</a> programming language. Zig offers many safety features and a comprehensive ecosystem for building and testing. It is known for having “no surprises”: there are no hidden function calls and no hidden memory allocations.
+The Zig language was created by Andrew Kelley in 2016, as a pragmatic alternative to the venerable <a href="https://github.com/rtoal/ple/tree/main/c">C</a> programming language. Zig offers many safety features and a growing ecosystem for building and testing. It is known for having “no surprises”: there are no hidden function calls and no hidden memory allocations. Unlike C, Zig has no preprocessor and no macros. Zig does add option types, generics, and custom allocators.
 
 ## Zig Resources
 
@@ -35,7 +35,7 @@ Continue your exploration of Zig via:
 
 ## Zig Open Source Projects
 
-Studying, and contributing to, open source projects is an excellent way to improve your proficiency in any language. Of the many projects using Lua, you may enjoy:
+Studying, and contributing to, open source projects is an excellent way to improve your proficiency in any language. Of the many projects using Zig, you may enjoy:
 
 - [Trending Zig Repositories on GitHub](https://github.com/trending/zig)
 - [tigerbeetle](https://github.com/tigerbeetle/tigerbeetle)